木麻黄试验林带生长量的研究

Study on the Growthmass About experimental Shelter Belt of Beefwood

对木麻黄生长量研究,旨在评价木黄麻的生长状况,探索该地区木麻黄生长规律。从而较完整地评价木麻黄防护林带的综合效益,并为木麻黄防护林带营造和更新提供科学依据。

The paper studies the growthmass of Beefwood in Pintong, Fujian. The result de- clares; Tree height annual growthmass of Beefwood is l.l6 metres and mean volume of timber is 4,056 cubic metres. The mathermatics model of relation both volume of timber and tree height is; Vt=--4,437×10^(-3)+ 7,4313G; Study on the distribution law of diameter states clearly; Tree density of shelter belt at present is appropriate; Growth characteristic on the tree trunk's dissect: Before 4 ages growth of Beefwood is slow, and from 4 to 7 agey its growth is height peri- od, and from 13 to 15 ages its growth goes into maturation period, and after 20 ages its growth goes into feeble period.